I recently posted a similar question (no responses). I use HP5+, rated @320, developed in Perceptol, 1:1, 15min., 68 degrees. Other than the film speed rating, those are Ilford recommended time/temp/dilutions. I also use a #8 yellow filter all of the time.(posted 8515 days ago)Since Perceptol is supposed to have a compensating effect, you should be able to see a slight softening of the edges, which I do. However, my negs still have quite a pop to them, so I am happy with the acutance. I get a wide tonal range, good highlights and good blacks and really nice shadow detail. I haven't tried Plus-X, but I've tried HP5, Tri-X, FP4, AgfaPan, TMax and Delta in Rodinal as well at various dilutions. I personally do not care for the grain and contrast I get with Rodinal.